/* =========================================================
   Prep Pakistan — Education & Achievement Design System
   Royal Blue · Emerald Green · Amber Gold
   ========================================================= */

/* ─── Design Tokens ──────────────────────────────────────── */
:root {
  /* Backgrounds — deep scholarly navy-blue */
  --bg-0: #06101E;
  --bg-1: #0B1829;
  --bg-2: #102035;
  --bg-3: #152840;

  /* Card surfaces */
  --card-bg:           rgba(11,24,41,0.82);
  --card-border:       rgba(255,255,255,0.07);
  --card-hover-bg:     rgba(16,32,53,0.94);
  --card-hover-border: rgba(37,99,235,0.38);

  /* ── Brand Colors ──────────────────────────────────────── */

  /* Primary — Royal Blue (knowledge, trust, authority) */
  --primary:       #2563EB;
  --primary-dark:  #1D4ED8;
  --primary-light: #3B82F6;
  --primary-glow:  rgba(37,99,235,0.15);
  --primary-glow-s:rgba(37,99,235,0.28);

  /* Success — Emerald Green (growth, achievement, progress) */
  --success:       #059669;
  --success-dark:  #047857;
  --success-light: #10B981;
  --success-glow:  rgba(5,150,105,0.14);

  /* Gold — Amber (excellence, rewards, streak, top scores) */
  --gold:        #D97706;
  --gold-light:  #F59E0B;
  --gold-glow:   rgba(217,119,6,0.14);

  /* Purple — Violet (wisdom, depth, interview/advanced) */
  --purple:        #7C3AED;
  --purple-light:  #8B5CF6;
  --purple-glow:   rgba(124,58,237,0.14);

  /* Danger/Error */
  --coral:  #EF4444;
  --coral-light: #F87171;

  /* Teal (focus room accent) */
  --teal:       #0D9488;
  --teal-light: #14B8A6;

  /* ── Legacy aliases so all JS still works ── */
  --green:             #059669;
  --green-dark:        #047857;
  --green-light:       #10B981;
  --green-glow:        rgba(5,150,105,0.14);
  --green-glow-strong: rgba(5,150,105,0.26);
  --indigo:            #2563EB;
  --indigo-light:      #3B82F6;
  --shadow-green:  0 8px 32px rgba(5,150,105,0.20);
  --shadow-indigo: 0 8px 32px rgba(37,99,235,0.22);

  /* ── Text ─────────────────────────────────────────────── */
  --text-1: #EEF4FF;   /* cool bright white */
  --text-2: #7A9BC4;   /* muted steel-blue */
  --text-3: #334E6E;   /* dim navy */

  /* ── Borders ─────────────────────────────────────────── */
  --border:        rgba(255,255,255,0.07);
  --border-active: rgba(37,99,235,0.40);
  --border-focus:  rgba(37,99,235,0.70);

  /* ── Shadows ─────────────────────────────────────────── */
  --shadow-sm:  0 2px 8px  rgba(0,0,0,0.45);
  --shadow-md:  0 8px 28px rgba(0,0,0,0.50);
  --shadow-lg:  0 20px 60px rgba(0,0,0,0.60);

  /* ── Shape ───────────────────────────────────────────── */
  --radius-sm:   8px;  --radius-md: 14px;  --radius-lg: 20px;
  --radius-xl:  28px;  --radius-full: 9999px;

  /* ── Motion ──────────────────────────────────────────── */
  --ease:        cubic-bezier(0.4,0,0.2,1);
  --ease-spring: cubic-bezier(0.34,1.56,0.64,1);
  --dur:         0.22s;
  --dur-slow:    0.40s;

  /* ── Typography ──────────────────────────────────────── */
  --font-h: 'Outfit', sans-serif;
  --font-b: 'Inter', sans-serif;
  --nav-h:  68px;
}

[data-theme="light"] {
  --bg-0: #F8FAFC;
  --bg-1: #F1F5F9;
  --bg-2: #E2E8F0;
  --bg-3: #CBD5E1;
  --card-bg: rgba(255,255,255,0.9);
  --card-border: rgba(0,0,0,0.08);
  --card-hover-bg: #FFFFFF;
  --card-hover-border: rgba(37,99,235,0.38);
  --text-1: #0F172A;
  --text-2: #334155;
  --text-3: #64748B;
  --border: rgba(0,0,0,0.08);
  --primary-glow: rgba(37,99,235,0.08);
}

/* ─── Reset ─────────────────────────────────────────────── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family:var(--font-b);
  background:var(--bg-0);
  color:var(--text-1);
  line-height:1.6;
  min-height:100vh;
  overflow-x:hidden;
}
a { color:inherit; text-decoration:none; }
button { cursor:pointer; font-family:var(--font-b); border:none; background:none; color:inherit; }
img { max-width:100%; }
::selection { background:rgba(37,99,235,0.30); color:var(--text-1); }
html { scrollbar-width: thin; scrollbar-color: rgba(37,99,235,0.30) transparent; }
::-webkit-scrollbar { width:5px; height:5px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:rgba(37,99,235,0.30); border-radius:4px; }
::-webkit-scrollbar-thumb:hover { background:rgba(37,99,235,0.50); }

/* Focus styles */
*:focus-visible {
  outline: 2px solid var(--primary-light);
  outline-offset: 2px;
}

/* ─── Background Blobs ──────────────────────────────────── */
#bg-canvas {
  position:fixed; inset:0; z-index:0; overflow:hidden; pointer-events:none;
}
#bg-canvas::before {
  content:'';
  position:absolute; inset:0;
  background:
    radial-gradient(ellipse 75% 55% at 10% 0%,  rgba(37,99,235,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 55% 45% at 90% 90%,  rgba(5,150,105,0.08) 0%, transparent 55%),
    radial-gradient(ellipse 40% 35% at 60% 45%,  rgba(124,58,237,0.05) 0%, transparent 60%);
}
.blob { position:absolute; border-radius:50%; filter:blur(110px); animation:blobFloat 32s var(--ease) infinite; }
.blob-1 { width:700px; height:700px; background:radial-gradient(circle,rgba(37,99,235,0.18),transparent 70%);   top:-260px; left:-180px; animation-duration:34s; }
.blob-2 { width:550px; height:550px; background:radial-gradient(circle,rgba(5,150,105,0.14),transparent 70%);    top:20%; right:-180px; animation-delay:-13s; animation-duration:28s; }
.blob-3 { width:480px; height:480px; background:radial-gradient(circle,rgba(124,58,237,0.11),transparent 70%);   bottom:5%; left:18%; animation-delay:-22s; animation-duration:38s; }
.blob-4 { width:340px; height:340px; background:radial-gradient(circle,rgba(217,119,6,0.09),transparent 70%);    bottom:-110px; right:22%; animation-delay:-8s; animation-duration:24s; }
@keyframes blobFloat {
  0%,100%{ transform:translate(0,0) scale(1); }
  30%     { transform:translate(28px,-38px) scale(1.04); }
  60%     { transform:translate(-20px,26px) scale(0.97); }
  80%     { transform:translate(34px,18px) scale(1.02); }
}

/* ─── Navigation ────────────────────────────────────────── */
.nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  height:var(--nav-h); display:flex; align-items:center;
  padding:0 1.5rem; gap:1.5rem;
  background:rgba(6,16,30,0.94);
  backdrop-filter:blur(24px); -webkit-backdrop-filter:blur(24px);
  border-bottom:1px solid rgba(255,255,255,0.06);
  /* Top blue accent stripe */
  border-top:2.5px solid var(--primary);
}
.nav-brand { display:flex; align-items:center; gap:0.65rem; flex-shrink:0; }
.nav-logo-icon {
  width:36px; height:36px;
  display:block;
  transition:transform var(--dur) var(--ease-spring);
}
.nav-brand:hover .nav-logo-icon { transform:rotate(-10deg) scale(1.12); }
.nav-logo-text {
  font-family:var(--font-h); font-size:1.2rem; font-weight:800; color:#fff;
}
.nav-logo-text span { color:var(--primary-light); }

.nav-center { display:flex; align-items:center; gap:0.15rem; margin-left:auto; }
.nav-link {
  display:flex; align-items:center; gap:0.4rem;
  padding:0.42rem 0.85rem; border-radius:var(--radius-md);
  font-size:0.82rem; font-weight:500; color:var(--text-2);
  transition:all var(--dur) var(--ease); position:relative; white-space:nowrap;
}
.nav-link svg { width:15px; height:15px; flex-shrink:0; opacity:0.75; transition:opacity var(--dur); }
.nav-link:hover { color:var(--text-1); background:rgba(37,99,235,0.10); }
.nav-link:hover svg { opacity:1; }
.nav-link.active {
  color:#fff; background:rgba(37,99,235,0.16);
  font-weight:600;
}
.nav-link.active svg { opacity:1; color:var(--primary-light); }
.nav-link.active::after {
  content:'';
  position:absolute; bottom:-1px; left:12px; right:12px; height:2px;
  background:var(--primary); border-radius:2px 2px 0 0;
}
.nav-right { margin-left:1rem; display:flex; align-items:center; }
.nav-user {
  position:relative; display:flex; align-items:center; gap:0.45rem;
  cursor:pointer; padding:0.3rem 0.7rem 0.3rem 0.3rem;
  border-radius:var(--radius-full); border:1px solid var(--border);
  transition:all var(--dur) var(--ease);
}
.nav-user:hover { border-color:var(--border-active); background:rgba(37,99,235,0.08); }
.nav-avatar {
  width:30px; height:30px; border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--success));
  display:flex; align-items:center; justify-content:center;
  font-size:0.78rem; font-weight:800; color:white; flex-shrink:0;
}
.nav-username { font-size:0.82rem; font-weight:500; color:var(--text-1); }
.dropdown-menu {
  position:absolute; top:calc(100% + 10px); right:0;
  background:rgba(11,24,41,0.98); border:1px solid rgba(37,99,235,0.18);
  border-radius:var(--radius-md); padding:0.4rem; min-width:178px;
  box-shadow:var(--shadow-lg);
  opacity:0; visibility:hidden; transform:translateY(-8px) scale(0.97);
  transition:all var(--dur) var(--ease); z-index:200;
}
.nav-user:hover .dropdown-menu, .nav-user:focus-within .dropdown-menu, .nav-user.active .dropdown-menu { opacity:1; visibility:visible; transform:translateY(0) scale(1); }
.dropdown-item {
  display:block; padding:0.52rem 0.75rem; border-radius:var(--radius-sm);
  font-size:0.84rem; color:var(--text-2); width:100%; text-align:left;
  transition:all var(--dur) var(--ease);
}
.dropdown-item:hover { color:var(--text-1); background:rgba(37,99,235,0.10); }
.dropdown-divider { border:none; border-top:1px solid var(--border); margin:0.3rem 0; }
.text-danger { color:var(--coral)!important; }
.nav-hamburger {
  display:none; flex-direction:column; gap:5px; padding:0.5rem;
  margin-left:auto; border-radius:var(--radius-sm); transition:all var(--dur) var(--ease);
}
.nav-hamburger:hover { background:rgba(255,255,255,0.06); }
.nav-hamburger span { display:block; width:22px; height:2px; background:var(--text-2); border-radius:2px; transition:all var(--dur) var(--ease); }

/* Mobile menu */
.mobile-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.75); z-index:150; backdrop-filter:blur(6px); }
.mobile-overlay.open { display:block!important; }
.mobile-menu {
  position:fixed; top:0; right:0; bottom:0; width:285px;
  background:linear-gradient(180deg,var(--bg-1) 0%,var(--bg-0) 100%);
  border-left:1px solid rgba(37,99,235,0.14); z-index:200; padding:1.5rem;
  display:flex!important; flex-direction:column; gap:0.4rem;
  transform:translateX(110%); transition:transform var(--dur-slow) var(--ease);
  box-shadow:-8px 0 48px rgba(0,0,0,0.7);
}
.mobile-menu.open { transform:translateX(0); }
.mobile-menu-header {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:1.5rem; padding-bottom:1rem; border-bottom:1px solid var(--border);
}
.mobile-menu-header button { color:var(--text-2); padding:0.4rem; border-radius:var(--radius-sm); transition:all var(--dur) var(--ease); }
.mobile-menu-header button:hover { color:var(--text-1); background:rgba(255,255,255,0.06); }
.mobile-link {
  display:flex; align-items:center; gap:0.6rem;
  padding:0.72rem 0.9rem; border-radius:var(--radius-md);
  color:var(--text-2); font-size:0.9rem; font-weight:500;
  transition:all var(--dur) var(--ease); width:100%; text-align:left;
}
.mobile-link:hover { color:var(--text-1); background:rgba(37,99,235,0.10); }

/* ─── App / Pages ────────────────────────────────────────── */
#app-root { position:relative; z-index:1; min-height:100vh; padding-top:var(--nav-h); }
.page { animation:pageIn var(--dur-slow) var(--ease) forwards; }
@keyframes pageIn { from{opacity:0;transform:translateY(16px)} to{opacity:1;transform:translateY(0)} }
.hidden { display:none!important; }

/* ─── Layout ─────────────────────────────────────────────── */
.container    { max-width:1240px; margin:0 auto; padding:0 1.5rem; }
.container-sm { max-width:840px;  margin:0 auto; padding:0 1.5rem; }
.container-xs { max-width:500px;  margin:0 auto; padding:0 1.5rem; }
.section { padding:5rem 0; }
.page-header { padding:2.6rem 0 2rem; border-bottom:1px solid var(--border); margin-bottom:2.5rem; }
.section-label {
  font-size:0.70rem; font-weight:700; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--primary-light); margin-bottom:0.6rem; display:flex; align-items:center; gap:0.4rem;
}
.section-label::before { content:''; width:16px; height:2px; background:var(--primary); border-radius:2px; display:inline-block; }
.section-title { font-family:var(--font-h); font-size:clamp(1.8rem,4vw,2.75rem); font-weight:800; color:#fff; line-height:1.12; }
.section-subtitle { margin-top:0.75rem; color:var(--text-2); font-size:1rem; line-height:1.80; max-width:580px; }

/* Grid helpers */
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); }
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); }
.gap-1{gap:0.5rem} .gap-2{gap:1rem} .gap-3{gap:1.5rem} .gap-4{gap:2rem}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:0.5rem;
  padding:0.65rem 1.5rem; border-radius:var(--radius-full);
  font-size:0.88rem; font-weight:600; font-family:var(--font-b);
  white-space:nowrap; cursor:pointer; border:none;
  position:relative; overflow:hidden;
  transition:all var(--dur) var(--ease);
}
.btn:active { transform:scale(0.97); }

/* Primary — solid royal blue */
.btn-primary {
  background:var(--primary); color:white; font-weight:700;
  box-shadow:0 4px 18px rgba(37,99,235,0.40), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-primary:hover {
  background:var(--primary-light); transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(37,99,235,0.50);
}

/* Success — solid emerald (start quiz, mark done etc.) */
.btn-success {
  background:var(--success); color:white; font-weight:700;
  box-shadow:0 4px 18px rgba(5,150,105,0.38), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn-success:hover { background:var(--success-light); transform:translateY(-2px); box-shadow:0 8px 28px rgba(5,150,105,0.45); }

/* Indigo alias → primary blue */
.btn-indigo { background:var(--primary); color:white; box-shadow:0 4px 18px rgba(37,99,235,0.35); }
.btn-indigo:hover { background:var(--primary-light); transform:translateY(-2px); }

/* Ghost */
.btn-ghost { background:transparent; color:var(--text-2); border:1px solid var(--border); }
.btn-ghost:hover { color:var(--text-1); border-color:var(--border-active); background:rgba(37,99,235,0.08); }

/* Danger */
.btn-danger { background:rgba(239,68,68,0.12); color:var(--coral); border:1px solid rgba(239,68,68,0.24); }
.btn-danger:hover { background:rgba(239,68,68,0.22); }

.btn-sm  { padding:0.38rem 0.9rem;  font-size:0.78rem; }
.btn-lg  { padding:0.82rem 2rem;    font-size:0.95rem; }
.btn-xl  { padding:0.95rem 2.4rem;  font-size:1.03rem; }
.btn:disabled { opacity:0.38; cursor:not-allowed; pointer-events:none; }
.w-full { width:100%; }

/* ─── Cards ──────────────────────────────────────────────── */
.card {
  background:var(--card-bg); border:1px solid var(--card-border);
  border-radius:var(--radius-lg); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px);
  padding:1.75rem; position:relative; overflow:hidden;
  transition:all var(--dur) var(--ease);
}
.card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(37,99,235,0.30),rgba(5,150,105,0.20),transparent);
  opacity:0; transition:opacity var(--dur);
}
.card:hover { border-color:var(--card-hover-border); background:var(--card-hover-bg); transform:translateY(-3px); box-shadow:var(--shadow-md); }
.card:hover::before { opacity:1; }
.card-flat { background:var(--bg-2); border:1px solid var(--border); border-radius:var(--radius-lg); padding:1.5rem; }
.card-active { border-color:var(--success)!important; box-shadow:0 0 0 1px var(--success), var(--shadow-green)!important; }

/* ─── Badges ─────────────────────────────────────────────── */
.badge { display:inline-flex; align-items:center; gap:0.28rem; padding:0.22rem 0.65rem; border-radius:var(--radius-full); font-size:0.72rem; font-weight:700; }
.badge-green  { background:rgba(5,150,105,0.12);  color:var(--success-light);  border:1px solid rgba(5,150,105,0.24); }
.badge-indigo { background:rgba(37,99,235,0.12);  color:var(--primary-light);  border:1px solid rgba(37,99,235,0.24); }
.badge-gold   { background:rgba(217,119,6,0.12);  color:var(--gold-light);     border:1px solid rgba(217,119,6,0.24); }
.badge-coral  { background:rgba(239,68,68,0.12);  color:var(--coral-light);    border:1px solid rgba(239,68,68,0.24); }
.badge-teal   { background:rgba(13,148,136,0.12); color:var(--teal-light);     border:1px solid rgba(13,148,136,0.24); }
.badge-purple { background:rgba(124,58,237,0.12); color:var(--purple-light);   border:1px solid rgba(124,58,237,0.24); }

/* ─── Forms ──────────────────────────────────────────────── */
.form-group { display:flex; flex-direction:column; gap:0.45rem; }
.form-label { font-size:0.83rem; font-weight:500; color:var(--text-2); }
.form-input,.form-select,.form-textarea {
  width:100%; padding:0.75rem 1rem;
  background:rgba(255,255,255,0.04); border:1px solid var(--border);
  border-radius:var(--radius-md); color:var(--text-1); font-size:0.9rem;
  font-family:var(--font-b); transition:all var(--dur) var(--ease); outline:none;
}
.form-input:focus,.form-select:focus {
  border-color:var(--border-focus); background:rgba(37,99,235,0.04);
  box-shadow:0 0 0 3px rgba(37,99,235,0.14);
}
.form-input::placeholder { color:var(--text-3); }
.form-select option { background:var(--bg-2); color:var(--text-1); }

/* ─── Progress Bar ───────────────────────────────────────── */
.progress-bar { height:6px; background:rgba(255,255,255,0.07); border-radius:var(--radius-full); overflow:hidden; }
.progress-fill {
  height:100%; border-radius:var(--radius-full);
  background:linear-gradient(90deg, var(--primary), var(--success));
  transition:width 0.6s var(--ease);
  position:relative; overflow:hidden;
}
.progress-fill::after {
  content:''; position:absolute; top:0; left:-100%; width:60%; height:100%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.3),transparent);
  animation:shimmer 2s infinite; border-radius:var(--radius-full);
}
@keyframes shimmer { 0%{left:-60%} 100%{left:130%} }

/* ─── Stat Card ──────────────────────────────────────────── */
.stat-card {
  background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg);
  padding:1.4rem; backdrop-filter:blur(20px); text-align:center;
  transition:all var(--dur) var(--ease);
}
.stat-card:hover { transform:translateY(-3px); border-color:var(--card-hover-border); }
.stat-value {
  font-family:var(--font-h); font-size:2.2rem; font-weight:800; line-height:1; margin-bottom:0.35rem;
  color:var(--gold-light);
}
.stat-label { font-size:0.74rem; font-weight:600; color:var(--text-2); text-transform:uppercase; letter-spacing:0.07em; }

/* ─── Filter Tabs ────────────────────────────────────────── */
.filter-tabs { display:flex; gap:0.4rem; flex-wrap:wrap; margin-bottom:2rem; }
.filter-tab {
  padding:0.42rem 0.95rem; border-radius:var(--radius-full);
  font-size:0.80rem; font-weight:500; color:var(--text-2);
  border:1px solid var(--border); cursor:pointer; transition:all var(--dur) var(--ease);
}
.filter-tab:hover { color:var(--text-1); border-color:rgba(37,99,235,0.30); }
.filter-tab.active { color:white; border-color:transparent; background:var(--primary); box-shadow:0 4px 16px rgba(37,99,235,0.30); }

/* ─── Divider ────────────────────────────────────────────── */
.divider { height:1px; background:linear-gradient(90deg,transparent,var(--border),transparent); margin:1.5rem 0; }

/* ═══════════════════ HOME HERO ═══════════════════════════ */
.hero {
  min-height:calc(100vh - var(--nav-h));
  display:flex; align-items:center; padding:4rem 0; position:relative;
}
.hero::before {
  content:''; position:absolute; top:0; right:0; bottom:0; left:40%;
  background:linear-gradient(135deg,rgba(37,99,235,0.04) 0%,rgba(5,150,105,0.05) 50%,rgba(217,119,6,0.02) 100%);
  pointer-events:none;
}
/* Decorative grid lines */
.hero::after {
  content:'';
  position:absolute; inset:0;
  background-image:linear-gradient(rgba(37,99,235,0.04) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,0.04) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,black 30%,transparent 100%);
  pointer-events:none;
}
.hero-badge {
  display:inline-flex; align-items:center; gap:0.5rem; padding:0.42rem 1rem;
  background:rgba(37,99,235,0.12); border:1px solid rgba(37,99,235,0.28);
  border-radius:var(--radius-full); font-size:0.78rem; font-weight:700; color:var(--primary-light);
  margin-bottom:1.6rem; letter-spacing:0.04em; position:relative; z-index:1;
}
.hero-title {
  font-family:var(--font-h); font-size:clamp(2.8rem,6.5vw,5rem);
  font-weight:900; line-height:1.06; margin-bottom:1.4rem; color:#fff; position:relative; z-index:1;
}
.hero-title .hl { color:var(--primary-light); }
.hero-sub { font-size:1.1rem; color:var(--text-2); line-height:1.85; margin-bottom:2.4rem; max-width:540px; position:relative; z-index:1; }
.hero-actions { display:flex; gap:1.2rem; flex-wrap:wrap; margin-bottom:3rem; position:relative; z-index:1; }
.hero-stats { display:flex; gap:2.5rem; flex-wrap:wrap; padding-top:2rem; border-top:1px solid rgba(255,255,255,0.06); position:relative; z-index:1; }
.hero-stat-val {
  font-family:var(--font-h); font-size:1.8rem; font-weight:900; color:var(--gold-light);
}
.hero-stat-lbl { font-size:0.76rem; color:var(--text-3); margin-top:0.18rem; font-weight:500; }

/* Exam Grid */
.exam-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(290px,1fr)); gap:1.4rem; }
.exam-card {
  background:var(--card-bg); border:1px solid var(--card-border);
  border-radius:var(--radius-lg); padding:1.6rem; backdrop-filter:blur(20px);
  transition:all var(--dur) var(--ease); position:relative; overflow:hidden;
}
.exam-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,var(--primary),var(--success));
  opacity:0; transition:opacity var(--dur);
}
.exam-card:hover { border-color:rgba(37,99,235,0.30); transform:translateY(-5px); box-shadow:var(--shadow-md); }
.exam-card:hover::before { opacity:1; }
.exam-icon-box {
  width:50px; height:50px; border-radius:var(--radius-md);
  display:flex; align-items:center; justify-content:center;
  font-size:1.45rem; margin-bottom:1rem;
  background:linear-gradient(135deg,rgba(37,99,235,0.15),rgba(5,150,105,0.12));
  border:1px solid rgba(37,99,235,0.18);
}
.exam-card-title { font-family:var(--font-h); font-size:1.04rem; font-weight:700; color:#fff; margin-bottom:0.22rem; }
.exam-card-sub { font-size:0.78rem; color:var(--text-2); margin-bottom:0.6rem; }
.exam-tags { display:flex; flex-wrap:wrap; gap:0.35rem; margin-bottom:1rem; }
.exam-tag { font-size:0.68rem; padding:0.18rem 0.52rem; background:rgba(37,99,235,0.08); border:1px solid rgba(37,99,235,0.14); border-radius:var(--radius-full); color:var(--text-3); }
.exam-card-actions { display:flex; gap:0.5rem; margin-top:0.75rem; }

/* ═══════════════════ AUTH ════════════════════════════════ */
.auth-page {
  min-height:calc(100vh - var(--nav-h));
  display:flex; align-items:center; justify-content:center; padding:2rem;
  background:
    radial-gradient(ellipse 60% 50% at 25% 45%, rgba(37,99,235,0.09) 0%,transparent 55%),
    radial-gradient(ellipse 50% 40% at 75% 55%, rgba(5,150,105,0.07) 0%,transparent 55%);
}
.auth-card {
  background:rgba(11,24,41,0.90); border:1px solid rgba(37,99,235,0.15);
  border-radius:var(--radius-xl); padding:2.6rem; width:100%; max-width:445px;
  backdrop-filter:blur(32px);
  box-shadow:var(--shadow-lg), 0 0 0 1px rgba(37,99,235,0.06);
  border-left:3px solid var(--primary);
}
.auth-logo { text-align:center; margin-bottom:2rem; }
.auth-logo-icon {
  width:64px; height:64px;
  display:block;
  margin:0 auto 0.85rem;
}
.auth-logo-text { font-family:var(--font-h); font-size:1.55rem; font-weight:800; color:#fff; }
.auth-tabs {
  display:flex; background:rgba(255,255,255,0.04); border:1px solid var(--border);
  border-radius:calc(var(--radius-md)+2px); padding:4px; margin-bottom:1.8rem;
}
.auth-tab { flex:1; text-align:center; padding:0.55rem; border-radius:var(--radius-md); font-size:0.85rem; font-weight:600; cursor:pointer; color:var(--text-2); transition:all var(--dur) var(--ease); }
.auth-tab.active { background:var(--primary); color:white; box-shadow:0 4px 16px rgba(37,99,235,0.40); }
.auth-form { display:flex; flex-direction:column; gap:1rem; }

/* ═══════════════════ QUIZ ════════════════════════════════ */
.quiz-topbar {
  position:sticky; top:var(--nav-h); z-index:50;
  background:rgba(6,16,30,0.95); backdrop-filter:blur(22px);
  border-bottom:1px solid var(--border); padding:0.8rem 1.5rem;
  display:flex; align-items:center; gap:1.4rem; flex-wrap:wrap;
}
.quiz-exam-name { font-family:var(--font-h); font-weight:600; color:#fff; font-size:0.92rem; white-space:nowrap; }
.quiz-prog-wrap { flex:1; display:flex; align-items:center; gap:0.7rem; min-width:120px; }
.quiz-prog-txt { font-size:0.78rem; color:var(--text-2); white-space:nowrap; }
.quiz-timer {
  display:flex; align-items:center; gap:0.38rem; padding:0.3rem 0.82rem;
  background:rgba(5,150,105,0.12); border:1px solid rgba(5,150,105,0.26);
  border-radius:var(--radius-full); font-size:0.88rem; font-weight:700; color:var(--success-light);
  font-variant-numeric:tabular-nums; font-family:var(--font-h);
}
.quiz-timer.warning { background:rgba(239,68,68,0.14); border-color:rgba(239,68,68,0.30); color:var(--coral-light); animation:tpulse 1s infinite; }
@keyframes tpulse { 0%,100%{opacity:1}50%{opacity:0.60} }
.quiz-layout { display:grid; grid-template-columns:1fr 310px; gap:1.5rem; align-items:start; padding:1.5rem; max-width:1240px; margin:0 auto; }
.question-panel { background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg); backdrop-filter:blur(20px); padding:2rem; }
.q-meta { display:flex; align-items:center; gap:0.7rem; margin-bottom:1.4rem; flex-wrap:wrap; }
.q-num { font-size:0.78rem; font-weight:700; color:var(--primary-light); }
.q-subj { font-size:0.73rem; color:var(--text-3); }
.q-text { font-size:1.04rem; line-height:1.76; color:#fff; margin-bottom:1.8rem; font-weight:500; }
.opts { display:flex; flex-direction:column; gap:0.7rem; margin-bottom:1.8rem; }
.opt {
  display:flex; align-items:flex-start; gap:0.85rem; padding:0.85rem 1rem;
  border:1px solid var(--border); border-radius:var(--radius-md); cursor:pointer;
  transition:all var(--dur) var(--ease); background:transparent;
  text-align:left; color:var(--text-2); font-size:0.91rem; line-height:1.5; width:100%;
}
.opt:hover { border-color:rgba(37,99,235,0.40); background:rgba(37,99,235,0.07); color:#fff; }
.opt.selected { border-color:var(--primary); background:rgba(37,99,235,0.12); color:#fff; }
.opt.correct  { border-color:var(--success); background:rgba(5,150,105,0.12); color:var(--success-light); }
.opt.incorrect{ border-color:var(--coral);   background:rgba(239,68,68,0.10); color:var(--coral-light); }
.opt-ltr {
  width:26px; height:26px; border-radius:50%;
  background:rgba(255,255,255,0.07); display:flex; align-items:center; justify-content:center;
  font-size:0.72rem; font-weight:800; flex-shrink:0; transition:all var(--dur) var(--ease);
}
.opt.selected  .opt-ltr { background:var(--primary); color:white; }
.opt.correct   .opt-ltr { background:var(--success); color:white; }
.opt.incorrect .opt-ltr { background:var(--coral);   color:white; }
.q-footer { display:flex; align-items:center; justify-content:space-between; padding-top:1.2rem; border-top:1px solid var(--border); gap:0.5rem; flex-wrap:wrap; }
.mark-btn { display:flex; align-items:center; gap:0.38rem; padding:0.42rem 0.95rem; border-radius:var(--radius-full); font-size:0.8rem; font-weight:500; color:var(--text-2); border:1px solid var(--border); transition:all var(--dur) var(--ease); }
.mark-btn:hover,.mark-btn.marked { color:var(--gold-light); border-color:rgba(217,119,6,0.34); background:rgba(217,119,6,0.08); }
.q-nav-btns { display:flex; gap:0.45rem; }

/* Navigator panel */
.nav-panel { background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg); backdrop-filter:blur(20px); padding:1.2rem; position:sticky; top:calc(var(--nav-h)+70px); }
.nav-panel-title { font-size:0.72rem; font-weight:700; color:var(--text-2); text-transform:uppercase; letter-spacing:0.08em; margin-bottom:0.9rem; }
.nav-legend { display:flex; flex-wrap:wrap; gap:0.45rem; margin-bottom:0.9rem; font-size:0.7rem; }
.leg-item { display:flex; align-items:center; gap:0.28rem; color:var(--text-3); }
.leg-dot { width:9px; height:9px; border-radius:3px; }
.leg-dot.answered { background:var(--success); }
.leg-dot.marked   { background:var(--gold); }
.leg-dot.curr     { background:var(--primary); }
.leg-dot.unans    { background:rgba(255,255,255,0.10); border:1px solid var(--border); }
.nav-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:0.38rem; margin-bottom:1.2rem; }
.nq-btn {
  aspect-ratio:1; display:flex; align-items:center; justify-content:center;
  border-radius:6px; font-size:0.72rem; font-weight:700; cursor:pointer;
  transition:all var(--dur) var(--ease);
  background:rgba(255,255,255,0.04); border:1px solid var(--border); color:var(--text-3);
}
.nq-btn:hover    { background:rgba(255,255,255,0.09); color:#fff; }
.nq-btn.answered { background:rgba(5,150,105,0.16);   border-color:rgba(5,150,105,0.32);  color:var(--success-light); }
.nq-btn.marked   { background:rgba(217,119,6,0.16);   border-color:rgba(217,119,6,0.32);  color:var(--gold-light); }
.nq-btn.curr     { background:rgba(37,99,235,0.24);   border-color:rgba(37,99,235,0.50);  color:var(--primary-light); transform:scale(1.08); }
.nav-mini-stats  { margin-top:1rem; padding-top:1rem; border-top:1px solid var(--border); display:grid; grid-template-columns:1fr 1fr 1fr; gap:0.5rem; text-align:center; }
.nav-mini-val { font-size:1.05rem; font-weight:800; }
.nav-mini-lbl { font-size:0.68rem; color:var(--text-3); margin-top:1px; }

/* ═══════════════════ RESULTS ═════════════════════════════ */
.results-hero { text-align:center; padding:3rem 0 2rem; }
.score-ring { width:170px; height:170px; margin:0 auto 1.5rem; position:relative; }
.score-ring svg { transform:rotate(-90deg); }
.score-ring-txt { position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.score-pct { font-family:var(--font-h); font-size:2rem; font-weight:900; color:var(--gold-light); }
.score-lbl { font-size:0.68rem; color:var(--text-2); text-transform:uppercase; letter-spacing:0.06em; }
.results-verdict { font-family:var(--font-h); font-size:1.55rem; font-weight:800; margin-bottom:0.4rem; }
.results-sub { color:var(--text-2); font-size:0.93rem; }
.results-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; margin:2rem 0; }
.r-stat { background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg); padding:1.2rem; text-align:center; backdrop-filter:blur(20px); }
.r-stat-val { font-family:var(--font-h); font-size:1.75rem; font-weight:800; margin-bottom:0.25rem; }
.r-stat-lbl { font-size:0.72rem; color:var(--text-2); text-transform:uppercase; letter-spacing:0.05em; }
.review-item { background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg); padding:1.2rem; margin-bottom:0.65rem; backdrop-filter:blur(16px); }
.review-hd { display:flex; align-items:flex-start; gap:0.7rem; margin-bottom:0.6rem; }
.review-status { width:22px; height:22px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:0.72rem; flex-shrink:0; margin-top:2px; }
.review-status.correct { background:rgba(5,150,105,0.22);  color:var(--success-light); }
.review-status.wrong   { background:rgba(239,68,68,0.22);  color:var(--coral-light); }
.review-status.skipped { background:rgba(255,255,255,0.08); color:var(--text-2); }
.review-q { font-size:0.88rem; color:#fff; line-height:1.5; }
.review-answers { display:flex; gap:1.5rem; font-size:0.8rem; color:var(--text-2); flex-wrap:wrap; margin-top:0.4rem; }
.review-expl { margin-top:0.7rem; padding-top:0.7rem; border-top:1px solid var(--border); font-size:0.8rem; color:var(--text-2); line-height:1.65; }

/* ═══════════════════ FLASHCARDS ══════════════════════════ */
.fc-scene { perspective:1400px; margin:0 auto; max-width:600px; height:300px; cursor:pointer; }
.fc-wrap { width:100%; height:100%; position:relative; transform-style:preserve-3d; transition:transform 0.65s cubic-bezier(0.4,0,0.2,1); }
.fc-wrap.flipped { transform:rotateY(180deg); }
.fc-face { position:absolute; inset:0; backface-visibility:hidden; border-radius:var(--radius-xl); display:flex; flex-direction:column; align-items:center; justify-content:center; padding:2.5rem; text-align:center; }
.fc-front { background:var(--card-bg); border:1px solid var(--card-border); border-top:3px solid var(--primary); backdrop-filter:blur(20px); }
.fc-back  { background:var(--card-bg); border:1px solid var(--card-border); border-top:3px solid var(--success); backdrop-filter:blur(20px); transform:rotateY(180deg); }
.fc-hint { font-size:0.72rem; color:var(--text-3); text-transform:uppercase; letter-spacing:0.09em; margin-bottom:0.9rem; }
.fc-question { font-family:var(--font-h); font-size:1.25rem; font-weight:600; color:#fff; line-height:1.4; }
.fc-answer { font-size:1.1rem; font-weight:700; color:var(--success-light); line-height:1.5; }
.fc-controls { display:flex; align-items:center; justify-content:center; gap:1rem; margin-top:1.5rem; }
.fc-progress { text-align:center; font-size:0.83rem; color:var(--text-2); margin-bottom:1rem; }

/* ═══════════════════ DASHBOARD ═══════════════════════════ */
.dash-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:1.3rem; }
.streak-box { display:flex; align-items:center; gap:0.7rem; }
.streak-flame { font-size:2.4rem; line-height:1; }
.streak-count { font-family:var(--font-h); font-size:2.6rem; font-weight:900; color:var(--gold-light); }
.streak-lbl { font-size:0.78rem; color:var(--text-2); }
.chart-wrap { position:relative; height:200px; }
.sess-list { display:flex; flex-direction:column; gap:0.45rem; }
.sess-item { display:flex; align-items:center; gap:0.7rem; padding:0.72rem 1rem; background:rgba(255,255,255,0.02); border-radius:var(--radius-md); transition:all var(--dur) var(--ease); border:1px solid transparent; }
.sess-item:hover { border-color:rgba(37,99,235,0.15); background:rgba(37,99,235,0.05); }
.sess-name { font-size:0.855rem; font-weight:500; color:#fff; }
.sess-meta { font-size:0.72rem; color:var(--text-3); margin-top:0.1rem; }
.sess-score { margin-left:auto; font-family:var(--font-h); font-size:1.02rem; font-weight:700; }

/* ═══════════════════ SETTINGS ════════════════════════════ */
.settings-sec { background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--radius-lg); padding:1.7rem; backdrop-filter:blur(20px); margin-bottom:1.3rem; }
.settings-sec-title { font-family:var(--font-h); font-size:0.98rem; font-weight:700; color:#fff; margin-bottom:1.2rem; padding-bottom:0.7rem; border-bottom:1px solid var(--border); }
.setting-row { display:flex; align-items:center; justify-content:space-between; padding:0.75rem 0; }
.setting-row+.setting-row { border-top:1px solid var(--border); }
.setting-lbl { font-size:0.88rem; font-weight:500; color:#fff; }
.setting-desc { font-size:0.75rem; color:var(--text-3); margin-top:0.12rem; }
.toggle { position:relative; width:44px; height:24px; flex-shrink:0; }
.toggle input { opacity:0; width:0; height:0; }
.toggle-slider { position:absolute; cursor:pointer; inset:0; background:rgba(255,255,255,0.10); border-radius:24px; transition:all var(--dur) var(--ease); }
.toggle-slider::before { content:''; position:absolute; height:18px; width:18px; border-radius:50%; left:3px; bottom:3px; background:var(--text-2); transition:all var(--dur) var(--ease); }
.toggle input:checked+.toggle-slider { background:var(--primary); }
.toggle input:checked+.toggle-slider::before { transform:translateX(20px); background:white; }

/* ═══════════════════ TOAST ═══════════════════════════════ */
#toast-container { position:fixed; bottom:1.5rem; right:1.5rem; z-index:1000; display:flex; flex-direction:column; gap:0.5rem; }
.toast {
  display:flex; align-items:center; gap:0.7rem; padding:0.85rem 1.25rem;
  background:rgba(11,24,41,0.97); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg); font-size:0.855rem; color:#fff; min-width:260px;
  animation:toastIn 0.34s var(--ease), toastOut 0.34s var(--ease) 2.7s forwards;
  backdrop-filter:blur(26px);
}
.toast-success { border-left:3px solid var(--success); }
.toast-error   { border-left:3px solid var(--coral); }
.toast-info    { border-left:3px solid var(--primary); }
.toast-warning { border-left:3px solid var(--gold); }
.toast-icon { font-size:1.05rem; }
@keyframes toastIn  { from{opacity:0;transform:translateX(110%) scale(0.94)} to{opacity:1;transform:none} }
@keyframes toastOut { from{opacity:1;transform:none} to{opacity:0;transform:translateX(110%) scale(0.94)} }

/* ═══════════════════ EMPTY STATE ═════════════════════════ */
.empty-state { text-align:center; padding:3.5rem 2rem; color:var(--text-2); }
.empty-icon { font-size:3rem; margin-bottom:0.9rem; opacity:0.40; }

/* ═══════════════════ FOCUS TIMER ══════════════════════════ */
.focus-config-card { border-color:rgba(37,99,235,0.20); }
.form-range { width:100%; height:6px; background:rgba(255,255,255,0.08); border-radius:var(--radius-full); outline:none; -webkit-appearance:none; accent-color:var(--primary); }
.pulse-glow-ring { background:transparent; transition:all 0.5s ease; }
.pulse-glow-ring.focus-pulse { animation:focusPulseRing 2.8s ease infinite; }
.pulse-glow-ring.break-pulse { animation:breakPulseRing 2.8s ease infinite; }
@keyframes focusPulseRing {
  0%,100%{ box-shadow:0 0 15px rgba(37,99,235,0.12); opacity:0.25; }
  50%    { box-shadow:0 0 60px rgba(37,99,235,0.50); opacity:0.60; }
}
@keyframes breakPulseRing {
  0%,100%{ box-shadow:0 0 15px rgba(5,150,105,0.12); opacity:0.25; }
  50%    { box-shadow:0 0 55px rgba(5,150,105,0.48); opacity:0.58; }
}
.task-checkbox:checked + span { opacity:0.45; }

/* ═══════════════════ AFFAIRS ══════════════════════════════ */
.article-card { transition:all var(--dur) var(--ease); }
.article-card:hover { transform:translateY(-4px); border-color:rgba(37,99,235,0.28); }
.article-text-body p  { margin-bottom:1.25rem; }
.article-text-body h4 { font-family:var(--font-h); font-size:1.15rem; font-weight:700; color:#fff; margin:1.8rem 0 0.8rem; }
.article-text-body ul { margin-bottom:1.25rem; padding-left:1.5rem; }
.article-text-body li { margin-bottom:0.45rem; }

/* ═══════════════════ PAPERS ════════════════════════════════ */
@media(max-width:820px) { .papers-layout{ grid-template-columns:1fr !important; } }

/* ═══════════════════ RESPONSIVE ═══════════════════════════ */
@media(max-width:1060px) {
  .quiz-layout{grid-template-columns:1fr}
  .nav-panel{position:static;order:-1}
  .results-stats{grid-template-columns:repeat(2,1fr)}
  .dash-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-center .nav-link span.nav-label { display:none; }
  .nav-link { padding:0.42rem 0.65rem; }
}
@media(max-width:768px){
  .nav-center,.nav-right{display:none}
  .nav-hamburger{display:flex}
  .hero-title{font-size:2.4rem}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .dash-grid{grid-template-columns:1fr}
  .container{padding:0 1rem}
  .results-stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .fc-scene { min-height:300px; height:auto; aspect-ratio: 4/3; }
}
@media(max-width:480px){
  .auth-card{padding:1.8rem}
  .hero-actions{flex-direction:column}
  .hero-stats{gap:1.5rem}
  .results-stats{grid-template-columns:repeat(2,1fr)}
  .quiz-topbar{gap:0.5rem;padding:0.6rem 1rem}
}

/* ═══════════════════ UTILITIES ════════════════════════════ */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0;
}
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.03) 75%);
  background-size: 200% 100%;
  animation: skeletonLoad 1.5s infinite;
  border-radius: var(--radius-md);
}
[data-theme="light"] .skeleton {
  background: linear-gradient(90deg, rgba(0,0,0,0.05) 25%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.05) 75%);
  background-size: 200% 100%;
}
@keyframes skeletonLoad { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.spinner {
  width: 24px; height: 24px; border: 3px solid rgba(255,255,255,0.1);
  border-radius: 50%; border-top-color: var(--primary);
  animation: spin 1s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.gradient-text {
  background: linear-gradient(135deg, var(--primary-light), var(--success-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.tooltip { position: relative; }
.tooltip::after {
  content: attr(data-tooltip); position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%) translateY(-4px);
  background: var(--bg-0); color: var(--text-1); padding: 0.3rem 0.6rem; border-radius: var(--radius-sm);
  font-size: 0.75rem; white-space: nowrap; opacity: 0; pointer-events: none; transition: opacity var(--dur); border: 1px solid var(--border);
}
.tooltip:hover::after, .tooltip:focus-visible::after { opacity: 1; }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center; z-index: 1000;
  opacity: 0; visibility: hidden; transition: all var(--dur);
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal {
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius-lg);
  padding: 2rem; width: 100%; max-width: 400px; transform: scale(0.95) translateY(10px);
  transition: all var(--dur) var(--ease-spring); box-shadow: var(--shadow-lg);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Home Page Specific Utilities */
.max-w-680 { max-width: 680px; }
.pt-0 { padding-top: 0 !important; }
.mt-2 { margin-top: 2rem; }
.text-center { text-align: center; }
.section-header { margin-bottom: 1.6rem; }
.section-header-center { margin-bottom: 2.2rem; text-align: center; }
.section-spaced { border-top: 1px solid var(--border); }

/* Feature Cards */
.feature-card { text-decoration: none; display: flex; flex-direction: column; gap: 0.5rem; transition: all var(--dur) var(--ease); }
.feature-card:hover { transform: translateY(-4px); border-color: rgba(37,99,235,0.28); }
.feature-icon { font-size: 1.9rem; }
.feature-title { font-family: var(--font-h); font-size: 1.05rem; font-weight: 700; color: var(--text-1); }
.feature-desc { font-size: 0.82rem; color: var(--text-2); line-height: 1.6; flex: 1; }
.feature-cta { font-size: 0.8rem; color: var(--green); font-weight: 600; }

/* Why Cards */
.why-card { text-align: center; transition: all var(--dur) var(--ease); }
.why-card:hover { transform: translateY(-4px); border-color: rgba(37,99,235,0.28); }
.why-icon { font-size: 2rem; margin-bottom: 0.9rem; }
.why-title { font-family: var(--font-h); font-size: 1rem; font-weight: 700; margin-bottom: 0.45rem; }
.why-desc { font-size: 0.82rem; color: var(--text-2); line-height: 1.65; }

/* Exam Card Header & CTA */
.exam-card-header { display: flex; align-items: flex-start; gap: 0.85rem; margin-bottom: 0.85rem; }
.exam-card-icon { flex-shrink: 0; }
.exam-card-desc { font-size: 0.8rem; color: var(--text-3); line-height: 1.55; margin-bottom: 0.85rem; }
.cta-section { border-top: 1px solid var(--border); text-align: center; }
.cta-icon { font-size: 3rem; margin-bottom: 1rem; }
.cta-title { font-family: var(--font-h); font-size: 2.1rem; font-weight: 900; margin-bottom: 0.9rem; }
.cta-desc { color: var(--text-2); margin-bottom: 2rem; font-size: 1.05rem; line-height: 1.78; }

/* Beta banner */
.beta-banner {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.65rem 1.5rem; background: rgba(37,99,235,0.12); border-bottom: 1px solid rgba(37,99,235,0.22);
  font-size: 0.82rem; color: var(--text-2);
}
.beta-banner-close {
  flex-shrink: 0; padding: 0.25rem 0.5rem; border-radius: var(--radius-sm);
  color: var(--text-3); font-size: 0.9rem; transition: all var(--dur) var(--ease);
}
.beta-banner-close:hover { color: var(--text-1); background: rgba(255,255,255,0.06); }

/* Site footer */
.site-footer {
  position: relative; z-index: 1; border-top: 1px solid var(--border);
  background: rgba(6,16,30,0.85); padding: 2rem 0 2.5rem; margin-top: 0;
}
[data-theme="light"] .site-footer { background: rgba(248,250,252,0.95); }
.site-footer-inner { text-align: center; }
.site-footer-brand {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-h); font-weight: 700; color: var(--text-1); margin-bottom: 0.75rem;
}
.site-footer-beta {
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.15rem 0.45rem; border-radius: var(--radius-sm);
  background: rgba(37,99,235,0.15); color: var(--primary-light);
}
.site-footer-links {
  display: flex; justify-content: center; gap: 1.25rem; margin-bottom: 0.75rem;
}
.site-footer-links a {
  font-size: 0.8rem; color: var(--text-2); transition: color var(--dur) var(--ease);
}
.site-footer-links a:hover { color: var(--primary-light); }
.site-footer-copy { font-size: 0.72rem; color: var(--text-3); margin: 0; }

/* Legal pages */
.legal-page .legal-body { padding: 1.75rem; line-height: 1.7; }
.legal-body h2 { font-family: var(--font-h); font-size: 1.05rem; font-weight: 700; color: var(--text-1); margin: 1.5rem 0 0.5rem; }
.legal-body h2:first-of-type { margin-top: 0; }
.legal-body p, .legal-body li { font-size: 0.88rem; color: var(--text-2); }
.legal-body ul { padding-left: 1.25rem; margin: 0.5rem 0; }
.legal-body a { color: var(--primary-light); }